This LIDAR gun simulator mimics eleven different traffic enforcement LIDAR guns. Each Lidargun operates at 904nM wavelength with short pulse bursts, some guns operate 100 pulses per second, some guns at 238 pulses per second, etc. The Laser Atlanta LIDAR guns offers a special stealth mode" to defeat early laser jammers by hiding some of the pulses and confusing their detection circuit. This simulator can reproduce the "stealth mode" to see if your equipmentis vulnerable. Only radar detectors that detect LIDAR threats are useful for testing, as this only transmits light not radar.

Step 1: Schematics, LCD

The schematics are broken into four segments. I suggest wiring the LCD first and make sure that works before continuing on, as this makes troubleshooting much easier.

Step 2: Schematic

Next wire up the 10K ohm Potentiometer, one lead goes to ground, the other lead to AREF (+5V), and the middle lead (selector) to analog pin 0 on the arduino. This pot will allow you to make your selection of twelve lidar guns -- one of them is the same gun but with stealth mode activated.

Step 3: Schematic LED

Next wire in your 904nM LED. Take note that one lead is shorter, this lead must go to ground. The other longer lead goes to the 90 ohm resistor. And finally the last lead of the resistor goes to arduino digital output pin 13.

Step 4: Schematic Push Button

Next we wire in your push button, one lead goes to ground, and the other lead goes to arduino digital input pin 11. The 10Kohm resistor is necessary so stray signals don't accidentally fire on pin 11 so attach the resistor to 5 volts. If you haven't guess it yet, but the push button is the trigger button to activate your simulated LIDAR gun.

Step 6: Conclusion

With this project I was able to determine how effective my old LP904 laser jammer is at detecting all these LIDAR guns. It could detect all LIDAR guns except Laser Atlanta in stealth mode, Jenoptik Laveg, and Jenoptik LaserPatrol. The last two guns are non-USA so that doesn't surprise me at all.

If you purchase a photodiode or phototransistor that operates close to 904nM and count the number of pulses and measure the time between the pulses you could make your own LIDAR detector using an arduino. That might be a cool project to add on next.

Make it Glow Contest 2018

Big and Small Contest

First Time Author

15 Discussions

Got this working. I modified the code a bit to remove some of the redundant frequencies so that I could add a few more different models and I also lengthened the "fire" command so it stayed on longer without disrupting the pulses. I also modified the frequencies to match with the counter on my cheap meter. (It may be different for you.) Here is what I came up with:

Beware, most or maybe all AL, LI, RB-905 Snooper, Stinger Laser Jammer Testers Emit a Crude DC damaging signal. See videos on you tube from a Limey dude . Theses garbage $60 devices have Destroyed very many expensive Jammers. The instruct able signal I have seen on scope and is superior and safer by far, so make it

Guy below like rdf trolls want to dissuade all from trying to make a DIY Jammer, but with sufficient aptitude it IS possible. I only use the awesome Splpl90-3 laser. A big leap ahead in area coverage compared to the cheaply made USA sold crappy variants. But if u want to pay x4 as much for same protection, not an M60 jammer, by all means be my guest. No power problems suggest to me these guys are not connecting the ground Earth, skip the 90 Ohm on ir led also. Dave

Can you email me? I need to ask you something I may be not understanding your instructions on how to complete my build of this laser gun tester I literally have it where it should be working but I must be missing something because it won't power! Please email me natismati @ aol com

I also simplified the sketch and had it running constantly, routed through my Oscilloscope. You Tube Video Paste into a tab and remove the gap. https ://www.youtube.com/watch?v=6WHEWhlFutk&list=PLwRovs-f9TKBxck-D6biGlblEiSj4ExIN&index=1

Wow! This is really cool. Speeding tickets are a right pain in the rear. A lot of people think that a radar detector will help them see the police coming and thereby keep away from a ticket. It might, but there are a few things to find out first. Read more here..

I see that you don't know about how LIDAR operates. It will reflect of any reflectable surface, especially license plates and headlights. That is why there is a substance called VEIL, so it decreases LIDAR reflection of all glossy surfaces.

The police officer will aim to your headlight when you don't have front LP, cause it's the most reflective surface.

There are more videos on youtube, or you may google using laser jammer video as keyword.